Hello Alexey,
On 2025-01-20 20:22, Alexey Charkov wrote:
Add the necessary cooling map to enable the kernel's thermal subsystem
to manage the fan speed automatically depending on the overall SoC
package temperature on Radxa Rock 5C
Signed-off-by: Alexey Charkov <alchark@xxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts | 32
+++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
index
1b66a69cf0f8795d7305852fa7fef3d0672ada7f..6e56d7704cbe0dc06242cb39df56b2fc9d6bc774
100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
@@ -68,7 +68,7 @@ led-1 {
};
};
- fan {
+ fan: fan {
compatible = "pwm-fan";
#cooling-cells = <2>;
cooling-levels = <0 24 44 64 128 192 255>;
@@ -417,6 +417,36 @@ rgmii_phy1: ethernet-phy@1 {
};
};
+&package_thermal {
+ polling-delay = <1000>;
+
+ trips {
+ package_fan0: package-fan0 {
+ temperature = <55000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+
+ package_fan1: package-fan1 {
+ temperature = <65000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&package_fan0>;
+ cooling-device = <&fan THERMAL_NO_LIMIT 1>;
+ };
+
+ map1 {
+ trip = <&package_fan1>;
+ cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
+ };
+ };
+};
+
&pcie2x1l2 {
pinctrl-names = "default";
pinctrl-0 = <&pcie20x1_2_perstn_m0>;
Thanks for the patch, it follows the usual approach for keeping
the fan noise down, and it's looking good to me. Please, feel
free to include
Reviewed-by: Dragan Simic <dsimic@xxxxxxxxxxx>
